Machine for making radiator-sections.



V. J. MAYO & S. GARGIULO. MACHINE FOR MAKING RADIATOR SECTIONS.

APPLIGATIOR FILED MAR 31, 1909.

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V. J. MAYO & S. GARGIULO. MACHINE FOR MAKING RADIATOR SECTIONS.

1,012,568. APPLICATION FILED MAR. 31, 1909. a en ed Dec. 19, 1911.

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VIRGINIUS J. MAYO AND SALVATORE GARGIULO, OF NEW HAVEN, CONNECTICUT;SAID GARGIULO ASSIGNOR T0 SAID MAYO.

Specification of Letters Patent.

Patented Dec. 19, 1911 Application filed March 31, 1909.. Serial No.486,909.

To on whom "it may concern:

Be itiknown that we, Vmcmms J. Marc and SALVATORE GARGIULO, bothcitizens of the United States, and residents of -New Haven, in thecounty of New Haven and State of Connecticut, have invented a new andImproved Machine for Making Radiator-Sections, of which the following isa full, clear, and exact description.

This invention relates to a machine to be used in bending and plaitingmetal which is 'to be built up into radiator sections.

The object of the invention is to provide a device, simple inconstruction, accurate in its operations, and which will plait a stripof metal quickly and accurately.

The machine is adapted to feed a strip of metal such as copper, brass orthe like, to a stamping die which'is adapted to first bend the metal bymeans of a blunt punch; sec ond, sharpen the angles of the bends thusformed; third, further accentuate the angles in the force the sides ofthe bend of the metal together, so as to form a plait. This operation isto be continuous, so that the metal will have a series of plaits formedat an angle to the plane of the. metal.

The invention consists in the construction and combination of parts, tobe more fully described hereinafter and particularly set forth in theclaims.

\Vhile we have shown the grooves on the lower die or (lie-bed, and thepunches on the upper die, the position of these grooves and punchesmaybe reversed and still be within the scope of our invention.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views, andin which- Figure 1 is a sideview, in elevation, of the device; Fig. 2 is. plan view, partly insection on the line 2-2 in Fig. 1; Fig. 3 is an enlarged verticalsection on the line S-3 in Fig. 2; Fig. 4 is an end view, in elevation,partly in section; and Fig. 5 is a bottom view of the die, showing theparts in detail.

Referring more particularly to the separiite parts of the device, 1indicates the frame of a stamping machine, which may be of any suitableform, having preferably bend in the metal; and, fourth,

a bed 2, on which a die may be placed. and a reciprocating sllde 3, towhich may be fastened a die, and which is adapted to be driven by meansof a crank 4 through the connecting link 5, which is suitably pivoted tothe crank 4 and the slide 3. This slide 3 is guided in any suitablemanner in the frame 1 as by guiding strips 6, which are secured to theframe in any suitable manner, as by set screws 7. The crank 4 is drivenfrom the shaft 8, which in turn is driven in any suitable manner, as bymeans of a belt or motor.

A disk 9 is secured to the crank 1 in such a manner that it will runtrue as if it were directly connected to a continuation of the shaft 8.This is done by means of a hollow boss 10, which is placedeccentricallyon the back of the disk 9. which is for the purpose ofdriving the feed that advances the sheet of metal to be bent andplaited.

A wedge-shaped adjusting block 10 is slidalily engaged in thewedge-shaped slot 11 in the disk 9, and has bearing on the ends thereofadjusting screws 12. which are engaged in screw-threaded openings in thedisk S and are adapted to reciprocate the wedge-block 1O back and forthin the slot 11, so'as to give an adjustment to the driving connectionwith the feed, to be described.

The adjusting block 1O has a plurality of openings 13 therein, in whichis adapted to be fastened in anysuitable manner, a screw 14, which inturn secures a connecting link 15 to the adjusting block 10. The connecting link 15 is formed in two parts, having threaded ends which arejoined by a turnbuckle 16, so as to adjust the length of the connectinglink. Pivoted to the connecting link 15 in any suitable manner, as bymeans of a pin 17, is a dog 18, which is also pivoted to suspendinglinks 19, which are in turnpivoted to the extension of a shaft 20.Adapted to be engaged by the dog 18 is a disk 21, rotatably secured tothe shaft 20 and preferably having its periphery scr rated, so as toform a good gripping surface for the toe of the dog 18. Secured to theshaft 20 in any suitable manner is also a feed roller 22, which has itsouter ends slightly beveled oil so as to form a. crown at the center,thus creating a tendency for a band of metal to keep near the middlethereof. Also secured to the shaft 20 is a gear 23, which meshes witb agear 2% secured on a shaft 25 parallel to the shaft 20 and which issuitably journaled in bearings on vertical supports 26 and 27. The shaft'25 has secured thereto a feed roller 28, which is adapted to co-actwith the roller 22, to feed between them a strip of metal to be bent andplaited.

The strip of metal, which is designated by the numeral 29, is adapted tofeed from any suitable support, such as a reel (not shown) over a guide30, on which are retaining guide rollers 31 and 32, to the feed rollers'22 and 28. The strip of metal to be bent and plaited passes between thefeed rollers 22 and 28 and over a suitable guide 33, which is of anysuitable form, preferably having upwardlyextending flanges 34 and 35,one of which (35)'is adjustable relative to the other by slot and pinconnections 37, 38, so as to allow for different widths of metal. Thesheet of metal then passes from the guide 33 to another guide-bed 36,which is similar to 33, being adjustable as to width by any suitablemeans, such as slot and pin connections 37, 38, and supported on theframe by any suitable means, to the die-bed support 39. The strip ofmetal to be bentpasses from the guide 36 over a die-bed 40, whichissupported on the die-bed-support 39 in any suitable manner, preferablybeing held between upwardly-extending flanges 41 and 42, the latterhaving screw-threaded perforations therein which are engaged by clampingscrews 43, which in turn clamp the die-bed 40 to the support 39.Extending from the opposite side of the die-bed support 39 and suitablysecured thereto is a guide 44, which is similar to a certain extent tothe guide 36, and is adapted to lead the metal away from the machineafter it has been plaited.

Supported in the slide'3 in any suitable manner, as by means of bolts45, and superposed above and adapted to coact with the die-bed 40 is adie 46, which has punches 47, 48 and 49 suitably secured thereto andwhich are adapted to coact with grooves 50, 51 and 52 in the diebed 40.These punches and grooves are so arranged that the first, 47 and 50,will form a blunt bend in a strip of metal fed therebetween, and thesecond pair, 48 and 51, will sharpen the angles in the bend thus formed,and the third pair,. 49 and 52, will further accentuate and sharpen theangles in tlg; bend previously formed. The punch 47 is thereforemadewith a blunt bottom edge, rounded in form, and extends the fullwidth of the die, to which it is fastened in any suitable manner, as bymeans of a clamp plate 53, through which extend holding screws 54, whichare adapted to pass clear through the punch 47 and into screwthreadedopenings in the die 46. The punches 48 and 49 are secured in any suitable manner to the die 46, as by means of a wedge-shaped slotarrangement, as shown in detail in Fig. 3, and are of a form such thatthe bottom edge is a sharp ridge from which slope upwardly, sides whichterminate in angle bends, as at 55. The groove 52, which, together withthe other grooves, extends the width of the die bed. 40, has its lowestbend formed in aseparate cross bar 56. This is done so that the groove52, which has the sharpest angle of the three, may be kept accurately tothe same height and width without having to renew the whole die-bed.

The bar 56 is secured in any suitable manner to the die-bed 40, as bymen ns of a clove tailed slot and groove arrangement, and also furnishesa surface which is adapted to coact with a plait-former 57. Theplaitformer 57 is of any suitable form, but preferably consists of across rod having a surface adapted to co-act with the facing surface ofthe cross bar 56 and slidingly engages the die-bed 40 in any suitablemanner, as by means of pins 58 which slide in suitable slots in thedie-bed 40, which has a'concavity and openings in its lower surfacethrough which access maybe gained to these screws 58 to place andreplace them. The plaitformer 57 is adapted to slide back and forth thelength of the slots 59, and is normally held away from the bar 56 bymeans of springs 60, which engage screws 61 on opposite ends of thelait-former, yieldingly holding it to the pins 62, which are suitably secured to the guide frame 44.

Suitably secured to the die 46 at opposite ends thereof, as by means ofscrews 63, are cams 64, which are adapted to co-act with. thecam-surfaces 65, on the ends of the plaitformer 57 and thus force theplait-former 57 against the action of the springs 60, so that the bendof metal formed by the grooves and punches on the die-bed. and die willbe crimped up and formed into a plait. The bend of metal formed by thepunches and grooves is forced into the space between the bar 56 and theplait-former 57 by means of a plunger 66 which is slidingly supported ina concavity in the under surface of the die 46, and has a rod 67extending into the concavity which is surrounded by a spring 68 thatengages the upper surface of the plunger 66 and tends to force it outfrom the die. This plunger 66 is held in any suitable manner within theconcavity in the under surface of the die 46, so that it will not beforced all the way out, but will be extended to a point where its lowersurface will be level with the lower edge of the punch 49. This plunger66 thus tends to yieldingly force the bend formed by the punches andgrooves in between the plaitformer 57 and the bar 56 and hold it thereuntil the plait is formed.

Directly below the groove 50 and adapted to extend upwardly into saidgroove are a plurality of clearing pins 69, which are adapted toreciprocate in o enings in the cyli drical grooves in the under surfaceof the die, and are held therein by an suitable means, such as a closingscrew T2. The spring-pressed pins 69 serve to force the bend of metalout of the groove 50 when the die 4-6 has been raised after its downwardstroke, thus permitting the strip of metal 29 to be advanced to its nextposition, where the bend which ca me out. oi? the groove 50 coincideswith the next groove 51.. The die 46 also has pins 73. which are similarto the pins 69, having re aining flanges 74 and extending springs Theclear ing pins strive to force the metal strip m 99 away f om the faceof the die 46, per mitting it to be advanced by the feeding rollers andQ8.

In order to clear the plait. formed be tween the die 4; and the.plait-l'orni r 57, there is provided on the guide-bed 44 aclearing-plate 71.3. which is bent down at its ends so as to form a goodguiding surface, and has av downwardly extending lug 77, which engages asuitable corug-avity in the guide-bed 44, and is adapted to bereciprocated therein against the action of the springs 78, and isprevented from being ejected from the concavity b v any suitable means.such as a retaining pin 79. An other suitable means may be substitutedfor these springs and pins, such as a single spring and a single pin.the object being merely to form a surface which will lift up the plaitedstrip of metal when the die 46 has been raised after its downwardstroke.

Secured to the die 46 in any suitable man ner. as by means of screws RU.is a right-angle member 81 to be designated as the keeper, which has ahorizontallv-extending arm, which is adapted to co-act with the clearingplate 76. so as to grip the plaited strip between them and prevent itfrom curling up.

Shown in dotted lines in Fig. and in full lines in Fig. 3, is a. plate82, which is adapted to be laid on top of the strip of metal to hold itin place and to prevent it from being covered with oil. It has on itsedges, about. the center. a. pair of lugs 83 which project through thespace hctween the guide 33 and the guide 36. and prevent the plate 82from being fed forward with the strip of metal.

The. die-bed support 39. the guide-Way 33 and the upright supports 26and 27 for the feed rollers are all supported in any suitable manner onthe bed-plate 84, which is secured in an suitable manner to the bed 2 ofthe stamping frame.

in the operation of the device, the strip of metal is annoyed from anysuitable means, such as reels, not shown, to the guide-way 30. betweenthe bottom thereot' and the guide rolls 31 and 32. from which it passesbetween the feed rollers 22 and which are adapted, by reason of theirconnection with the crank 4. to intermittently feed the. strip of metalover the guide 33 and the guide 36, to a position between the die-bed 40and the die 46. Here the metal is subjected to the action of the punchesand grooves on the die-bed, the die being reciprocated by means of theslide 3. which is operated by the (rank 4 through the connecting link 5.The strip of metal is first subjected to the action of the punch 47 andthe U shaped groove 50. which makes a U-shaped bend in the strip ofmetal. (in the return stroke of the slide it. the clearers of) for thedie-bed and the clcarers 7- in the die remove the strip of metal fromthe grooves and punches. While the slide 3 is being raised and ready toreturn. thriced rollers 22 and 29 have been revolved a sulticient amountto advance the U-shaped bend in the strip of metal from its positionover the groove 50 to a position over the groove 51. Here. on the returnstroke of the die 46. the bend in the metal is sharpened somewhat bv thepunch 48. The slide 3 again withdraws the die 46. and the clearcrs ()9and T3 again force the strip of metal away from the diebed and the die.and in the meantimm the feed rollers again advance the strip 01 metalthe same amount as before bringing the V-shaped bend formed by theV-shaped groove 51 and the punch 48, over the groove 52. which is alsoV-shaped and has an angle somewhat sharper than the groove 51. On thedownward stroke of the die 46. the V- shaped groove in.the metal isSlllljtTtttl to the action of the groove 52 and the punch 49. where itsangles are somewhat sharpcued. On the withdrawal of the die 46 by theslide 3. the metal is again forced from the die-bed and die by means ofthe clearer-s 69 and 7 and also again advanced by the feed rollers 22and 29 the same amount as before, bringing the V-shaped bend over thespace between the cross bar 56 and the plait-former 57. On the downwardstroke of the die 46, the plunger 66 forces the bend downward into aposition where its sides are between the facing surfaces of the bar 56and the plait-former 57. The downward stroke of the die 46 also bringsthe cams 64 in contact with the cam surfaces 65 on the plait. former.forcing the plait-former toward the bar 56 and thereby forming the bent.in the metal into a l I plait. The strip of metal 18 thus corrugated bymeans of the die and die-bed, and the corrugations are then. bent toform plaits, as described above.

By the term plait it is not desired to limit it to a bend in the metalbeing at right-angles to the plane of the metal and having its sides inintimate contact throughout the entire length. The plait. may be formedby merely forcing the outer edges of the plait together. leaving a spacebetween the sides thereof, and the plait may also be formed at an angleto the plane of the sheet of metal other than a rightangle.

The operation is continuous, forming a series of plaits at,an angle tothe plane of the sheet of metal, the plaited strip of metal passing onto the right, over the guide .414, to where it is subjected to anotheroperation, which does not form a part; of this invention.

\Vhile we have shown the plaits all form ed on one side of themetal andat equal distances apart. this distance being preferably such that thedepth of the plait from the under surface oi the metal is sulrstantially one-half the distance between the plaits, we may form theseplaits in any other manner within the scope of this in vention. IVe mayterm the plaits in the metal at an equal distance, such that thedistance between the plaits' is substantially equal to the depth of theplait, or we may form the plaits at other distances by adjusting theturnbuckle it and the pivot point 14.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. In a device of the class described, thecombination with a die-bed, of a die, means co-acting with said die-bedand said die to form corrugations in a sheet of metal, means forclearing said sheet of metal from the diebed, means for clearing saidsheet of metal from the die, means for forming said corrugations intoplaits and. means for clearing said plaits from said last-mentionedmeans.

2. In a device of the class described, the combination with a die-bedhaving grooves, the angle in each successive groove being sharper thanthe angles in the preceding groove, of a plait-former adapted to co-actwith said die-bed, a die adapted to co-act with said die-bed and saidplait-former, punchesfor said die adapted to co-aet with the grooves insaid die-bed, and means for actuating said die.

3. In a device of the class described, the combination with a die'bedhaving grooves therein, the anglesin each groove being sharper than thse in the groove r. xt preceding, of a die JI said groove, punches onsaid die adapted to eoact with said grooves,

and means for intermittently feeding a strip of metal between saiddie-bed and said die. so to bring points at intervals in said sheet ofmetal successively between each of said grooves and punches.

t. In a device of the class described the L'('7llll)llltltl0li with adie-bed having grooves therein, the angles in each successive groovelwing sharper than the groove next preceding, of a die for said diebed,punches for said die adapted to co-act with said grooves, a plait-formeradapted to co-act with said die-bed, and means for intermittentlyfeeding a strip of metal between said die and said die-bed so thatpoints at intervals on said strip of metal will be successively broughtinto the sphere of operation of each of said grooves and punches andsaid plait-tormer, so as to accurately form a plait in said sheet ofmetal.

5. In a device of the class described, the combination with a die-bedhaving grooves therein, of a die for said die-bed, punches for said dieada'ited to co-act with said grooves, a plait-iormer adapted to co-actwith said die-bed, means for feeding a strip of metal so that portionsat intervals on said strip of metal will successively come into thesphere of operation of each coacting groove and punch and said plaitformer, means adapted to clear the sheet of metal from the grooves insaid diebed, means adapted. to clear the sheet of metal from said die,means adapted to force said sheet of metal into cooperation with saidplaitforincr. and means adapted to force said sheet of metal from saidplait-former.

a. In combination with a die-bed having grooves therein, each of saidgrooves being sharper than the groove next preceding, of a pin adaptedto reciprocate in a slot in. said die-bed, a spring adapted to actuatesaid pin, and means for supporting said spring in place.

7. The combination with a die-bed having female grooves therein, of a.cross bar forming part of one of said grooves, a plaitformer adapted toslide relatively to said die-bed and also adapted to co-act with saidcross bar. and a clearer for said die-bed.

H. The combination with a die-bed hav ing a plurality of groovestherein, each successive groove being sharper than the groove nextpreceding, of a cross bar for said diebed, said cross bar forming one ofthe sides and the bottom edge of said groove, a plaitformer adapted toslide on said die-bed and adapted to co-act with said cross bar,meansfor retaining said plait-former in cooperation with said die-bed, and a'clearer for said die-bed.

9. A die, comprising a body portion, a series of punches for said bodyportion, each of said punches being sharper than the one next preceding,a plunger slidingly secured in said body portion, means adapted tonormally force said plunger out from said body portion, and a clearerfor said body portion.

10. A die, comprising a body portion, a series (if punches reinovablysecured in said body portion, each of said punches being sharper thanthe punch next preceding, a plunger adapted to slide in said. bodyportion, spring means adapted to force said plunger out from said bodyportion, and a spring-pressed pin adapted -to act as a clearer for saidpunches.

11. In a device of the class described, the combination with a die-bedhaving a series of grooves therein, of a die adapted to coact with saiddie-bed, punches for said die adapted to co-act with said grooves, aplait-' former adapted to co-act with said die-be d, a cross bar adaptedto co-act with said lait-former, means for normally holding saidplait-former away from said cross bar,

and means on said die adapted to force said Plait-former toward saidcross bar.

12. In a device of the class described, the combination with a die-bedhaving a series of grooves therein, of a die'for said diebed, a seriesof punches in said die adapted to co-act with said groove, a cross barfor said die-bed, a plait-former adapted to coact with said cross bar,spring means adapt ed to normally hold said plait-former away from saidcross bar, and a cam on said die adapted to force said plait formertoward said cross bar.

13. In a device of the class described, the combination with a femaledie having parallel grooves therein, of a die having parallel membersadapted to co-act with said grooves to form \vidthwise corrugations in asheet of metal, means for forming said corrugations into a plait, andmeans for clearing said sheet of metal from the grooves.

14. In a device of the class described, the combination with a die-bed,of a die, said die-bed and said die being constructed as to formwidthwise corrugations in a sheet of metal when forced together withsaid sheet of metal between them, means for clearing said sheet of metalfrom the die-bed, and means for clearing said sheet of metal from thedie.

15. In a device of the class described, the combination with a die-bed,of a die, pressure means co-acting with said die-bed and said die toform grooves in a sheet of metal, spring means for clearing said sheet.of metal from the die-bed, and spring means for clearing said sheet ofmetal from the die.

16. In a device of the class described, the combination with a die-bed,of a die, a plate former adapted to co-act with said die-bed to form abend in a strip of metal, springpressed means adapted to force said bendof metal between said die-bed and said plait-former, spring-pressedmeans adapted to force said bend of metal from between said die-bed andsaid plait-former, and mechanism on said die adapted to actuate saidplait-former.

17. In a device of the class described, the combination with a support,of means for forming a corrugation in a sheet of metal, means forsimultaneously accentuating the angle of said corrugation throughout itsentire length, and means for forming said corrugation into a plait.

18. A machine for forming a series of parallel plaits in a stri ofmetal, comprising a plurality of dies liaving a plurality of spacedportions thereon extending in arallel relation, each portion beingadapted to be brought successively and separately into en gagement withidentical sections of a strip of metal spaced apart from each other bypredetermined intervals, and a plait former adapted to engage saidsections subsequent go the action thereon of said portions of said ies.

19. A machine for forming a series of parallel plaits in a strip ofmetal, comprising a plurality of dies having a plurality of spacedportions thereon extending in parallel relatlon, each portion beingadapted to be brought successively and separately into engagement withidentical sections of a strip of metal spaced apart from each other bypredetermined intervals, an intermittent feeder for advancing said stripof metal so as to bring said sections successivel into conjunction withsaid portions on said die,

and a plait former adapted to engage said,

sections subsequent to the action thereon of said portions of said die.

20. A machine for forming a series of parallel plaits in a strip ofmetal, comprismg cooperating dies ha vlng parallel punches and groovescooperating in pairs with each other, a feeder adapted to bringsuccessive sections of a strip of metal separated from each other bypredetermined intervals, into the sphere of operation of each pair ofpunches and grooves, whereby a continuous series of parallelcorrugations is formed, and a plait former adapted to engage saidcorrugations and form them into plaits.

21. A machine for forming a series of parallel plaits in a strip ofmetal, comprising coiiperating dies having parallel punches and groovescooperating in pairs with each other, each pair being of different formwith respect to the next adyaeent pair, a feeder adapted to bringsuccessive sections of a strip of metal separated from each other bypredetermined intervals, into the sphere of operation of each pair ofpunches and grooves, whereby a continuous series of parallel corrugations is formed, and a plai t former adapted to operativelyengagesaid corrugations and form said corrugations into plaits.

22. In a device of the class described the combination with a corrugatorincluding a plurality of graduated sets of corrugation formers, of aplait-former, and a feeder adapted to shift a sheet of metal from saidcorrugator to said plait-former, the s cing of said corrugation formersand plaitormer being so correlated to said feeder as to causecorrugations formed on a single sheet to be shifted to and roperlypositioned relatively to said plaitornier to receive the action thereof.

23. In a device of the class. described, the combination of a set ofgraduated corrugation formers, of a plait-former and a feeder adapted tointermittently shift a strip of metal from said corrugation formers tosaid lait-former, the spacing of saidtcorrugation formers andplait-former being so correlated to said feeder as to cause thecorrugation formed on a single sheet to be shifted to and properlypositioned relatively to said plan;- former to receive the actionthereof.

24. In a deyice of the class described, the combination of a diemechanism, to form a corrugation in a sheet of metal, a co-actingplait-former at one-end of said die mechanism parallel thereto, a sheetshifting mechanism cooperating With the die mechanism and plait-former,and means for actuating said shifting mechanism in the interval betweenthe action of the die mechanism and lait-former to shift successivelythe bends formed in the sheet by the die mechanism from said diemechanism 'to said plaitformer, and to properly position such bendssuccessively with relation to said plaitformer, and means to free saidsheet from the die mechanism, and plait-former preceding the operationof the feeding mechanism.

25. In a device of the class described, means for forming a series ofparallel corrugations extending across a fiat strip of metal, co-actingplait forming means arran ed parallel thereto and adapted to receivetiat' end of the strip having a series of corrugations and to transformtherein into plaits, means for trans erring the corrugated strip fromthe corrugating means to the plaiting means, both of said means bein sospaced that each plait in said strip will be shifted to and properlypositioned relatively to the plait forming means to receive the actionthereof.

26. In a device of the class described, a corrugating mechanism adaptedto form a series of parallel plaits extending across a flat sheet ofmetal, a co-acting plait-forming mechanism adapted to receivethat end ofthe strip having a series of corrugations, and transform the same intoplaits, and a driving means in common to said corrugating andplait-forming means to cause the same to simultaneously operate upon asingle strip of metal passing therethrough:

In testimony whereof We have signed our names to this specification inthe presence of two subscribing witnesses.

VIRGINIUS J. MAYO. SALVATORE GARGIULO.

Vitnesses WM. A. WRIGHT, JOHN F. FABIAN.

the eorru ations.

